Type material Guatemala: Dept. Chiquimula: rocky banks, base of Cerro Colorado, along Río Jocotán, near Jocotán, alt. 400 m, November 9, 1939, Julian A. Steyermark 31534 (HT: F). [details]
Compositae Working Group (CWG) (2025). Global Compositae Database. Eupatorium macrum Standl. & Steyerm.. Accessed at: https://www.compositae.org/gcd/aphia.php?p=taxdetails&id=1201969 on 2025-09-14
original description(1944). Publ. Field Mus. Nat. Hist., Bot. Ser. 23 page(s): 184 [details]
Present Inaccurate Introduced: alien Containing type locality
Unreviewed
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record Standley & Steyerm. [Bolivia Checklist] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Eupatorium macrum Standley & Steyerm. [Bolivia Checklist] [details] Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Publ. Field Mus. Nat. Hist. Bot. ser. 23: 184. 1944. [Robinson Eupatorieae] Publ. Field Mus. Nat. Hist., Bot. Ser. 23(4) [MesoAmericana] Publications of the Field Museum of Natural History, Botanical Series 23(4): [Tropicos] [details] LSID urn:lsid:compositae.org:names:CCEB1633-011B-4141-8A25-BFE515D67101 [details] Type material Guatemala: Dept. Chiquimula: rocky banks, base of Cerro Colorado, along Río Jocotán, near Jocotán, alt. 400 m, November 9, 1939, Julian A. Steyermark 31534 (HT: F). [details]